Home / 132,279.36-182,517.12-78,582.48

Finding the Fourth Proportional to 132,279.36, 182,517.12 and 78,582.48

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Solution

The fourth proportional to 132,279.36, 182,517.12 and 78,582.48 is: 108,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,279.36 : 182,517.12 = 78,582.48 : x
  2. Step 2: Convert to fraction form
    132,279.36/182,517.12 = 78,582.48/x
  3. Step 3: Cross multiply
    132,279.36x = 182,517.12 × 78,582.48
  4. Step 4: Simplify right side
    132,279.36x = 14,342,647,932.06
  5. Step 5: Solve for x
    x = 14,342,647,932.06/132,279.36
  6. Step 6: Final answer
    x = 108,426.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.